<template>
    <!-- 输入框 -->
    <header class="header">
      <h1>小黑记事本</h1>
      <input placeholder="请输入任务" class="new-todo" v-model="todoName" @keyup.enter="handleAdd"/>
      <button class="add" @click="handleAdd">添加任务</button>
    </header>
  
</template>

<script>
export default {
  data(){
    return {
      todoName:''
    }
  },
  methods:{
    handleAdd(){
      this.$emit('add',this.todoName)
      this.todoName = ''
    }
  }
}
</script>

<style>

</style>